Boiler furnace



6M? ATTORNEYS.

E. H. WELLS BOILER FURNACE INVENTOR Filed August 9, 1921 May 18 1926.

' when itisjclesil'ecl t0'l cletntl1'8: lower tubes 7 "10, a 'clesme 20 moved to open pesltlo'n,

vas shewngat the leftgof Fig. 3, ancl'thetool Tinsertedztln'o ugh the opening lj9-lto" cut and sliclingly mounted 1011 metal frames 21 'at 'taehecl to the easing- 18 whichis carried in ,Wa 1" ;l, ais' sh'ewii in Fig. 2, tb-a point adj-a cent the outer lae of. the tiles 15, 16; U l'nthe illustrative fqrni ofthe invent 1011,,

remove the accumulated slagffroin" all parts 0't'tl1etuhes-10 accessible thrqugh the QPQDE ing 19. The tool T is successively insertecl' through'jtliewsevefal "openings 19' by'fwhich all of the tubes 10--\ v1i1lbe ultimately Teaphtl and cleaned. j

of making up; the 1 opening; with {ithe opening, lfQlllleil'iln the middle Of the tile. It will a.

stood that. tel); jus' suresfoii the opemngs may-be usecl.

. "Inaljfurimc'e for ijzontallji' extending Water eomieeting' WaterSeomPitrtmehts atft'heir ends,v 21' 1:ef1"ac-- V tOIy Wall beneath and ediment to the ends of the tubes, "tefieet'efy i tiles at thequpper part? oflthe Wall en'clQhevih'g a horizontally extehclihg series 7 of openings form ecl therein Whlchfa're enlarged inwardly to permit entx y t-gfeltoiil selectlt elyi'therethtough' encliaccess I tO' theflower' atehttihes; metal fra n iing" oujt- Y Y :openin'gs.

'ange- 7 access openm 1 -3, In afuhmpe for 2i zojntally "extemlmg ater- 'tuhes"con ectlng Sicl'e thefrow of tiles and havihg access openi'ngs registering With'the openingsfin the.

movable cl0sure's 'l0fthe framing V furnace fOI2\-,l')Oll61 -l1 tV,lng hori-j lzontally eXten'clingfWater.tubes Connecting] Water col'npartments atthel r enclge irefrzic-f tery wztll beneath and aclj a'e'entto the ends of the tubes, refractory, tiles at the upper part 01 the Wall, salcl t'iles;l1aving interlqeking 1 tiles, and

2. In a projections and recesses andhavinga heri- ]zentallyextendings'eylesof openings fO'XIljlGd ther'em whieh are enlarged lnwarclly'te pe'r-- mit entry Of 2t tool seleetively tllIGthlfOUgll a'i'ncl Etceess to tl1elewj'e {water tubes; metal the framing openings. V ho ler {havmg honwater compartments atitheir'encls;l efr ac- 'tOlji- Wall 'be1'1eztthencl' aclj aent to v the engils lot the tubes, refractory tiles at the p'per part if the Wall and halving"afhoi'izontally extending series of openings famed therein of a 'teol selectively therethreugh and access mgs registering with ftheopenings in the 'nietal framing,iseonneetetlx which are ehlztrgedintmrdlyto permitenti'y' to the lower "Water tubesimetal fl t-thing "out- 65 sidethe row of tiles ancllmv ng ae'cess'epen V tilesin evable closures 1 fer the framing Open insgs,-a11cl an outer metal c'asmg to which the 

